Asuncion

$503+ Cheap flights from Seattle (SEA) to Asuncion (ASU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
May 29 — Jun 51
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Cheap flight deals from Seattle to Asuncion

Cheapest flights from Seattle to Asuncion
Explore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.

This Expedia deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 am
SEA
-
ASU
2 stops40h 35m
Multiple Airlines
Mon 10/128:10 am
ASU
-
SEA
2 stops39h 50m
Multiple Airlines
Deal found 4/25$962
This KAYAK deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:20 am
SEA
-
ASU
2 stops30h 20m
LATAM Airlines
Thu 8/2011:05 am
ASU
-
SEA
2 stops29h 53m
LATAM Airlines
Deal found 4/25$1,163
This LATAM Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:05 am
SEA
-
ASU
2 stops27h 35m
LATAM Airlines
Sat 6/278:10 am
ASU
-
SEA
2 stops19h 49m
LATAM Airlines
Deal found 4/25$1,171
This Copa Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:33 pm
SEA
-
ASU
2 stops31h 15m
Copa Airlines
Fri 8/211:47 am
ASU
-
SEA
2 stops24h 09m
Copa Airlines
Deal found 4/24$1,174
This Ovago deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:51 pm
SEA
-
ASU
2 stops25h 06m
Copa Airlines
Fri 8/216:33 am
ASU
-
SEA
2 stops19h 23m
Copa Airlines
Deal found 4/25$1,182
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:00 pm
SEA
-
ASU
2 stops26h 57m
United Airlines
Thu 8/206:33 am
ASU
-
SEA
2 stops42h 48m
United Airlines
Deal found 4/25$1,190
This KAYAK deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/98:00 am
SEA
-
ASU
2 stops29h 40m
LATAM Airlines
Wed 8/1911:05 am
ASU
-
SEA
2 stops38h 54m
LATAM Airlines
Deal found 4/25$1,215
This LATAM Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:00 pm
SEA
-
ASU
2 stops21h 55m
LATAM Airlines
Sun 10/1811:05 am
ASU
-
SEA
2 stops38h 53m
LATAM Airlines
Deal found 4/28$1,223
This LATAM Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
SEA
-
ASU
2 stops37h 25m
Multiple Airlines
Mon 6/298:10 am
ASU
-
SEA
3 stops56h 23m
Multiple Airlines
Deal found 4/29$1,247
This Travelocity deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:39 pm
SEA
-
ASU
2 stops25h 01m
Multiple Airlines
Mon 6/298:10 am
ASU
-
SEA
2 stops19h 49m
Multiple Airlines
Deal found 4/29$1,253
This FlightHub deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:18 pm
SEA
-
ASU
2 stops28h 47m
Multiple Airlines
Sun 6/288:10 am
ASU
-
SEA
2 stops32h 19m
Multiple Airlines
Deal found 4/25$1,254

Find flight deals from Seattle to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Asuncion (ASU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$962
(Expedia)

One-way from

$503
(Trip.com)

Popular in

May

Cheapest in

September

Average price

$943
Provider with most accurate pricing for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Asuncion Silvio Pettirossi flights.
From Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
One-way flight from Seattle/Tacoma Intl to Asuncion Silvio Pettirossi
Highest demand for flights based on searches. 17% potential increase in price ($213 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Asuncion that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Seattle to Asuncion that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 8/12

3:33 pm-2:48 am

2 stops31h 15m

Asuncion Silvio Pettirossi

Fri 8/21

1:47 am-9:56 pm

2 stops24h 09m

$1,174

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 10/14

10:00 pm-11:55 pm

2 stops21h 55m

Asuncion Silvio Pettirossi

Sun 10/18

11:05 am-9:58 pm

2 stops38h 53m

$1,223

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 5/18

12:40 pm-6:05 am

2 stops37h 25m

Asuncion Silvio Pettirossi

Mon 6/29

8:10 am-12:33 pm

3 stops56h 23m

$1,247

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 6/10

11:52 pm-4:40 am

2 stops24h 48m

Asuncion Silvio Pettirossi

Wed 6/17

11:25 am-10:16 am

2 stops50h 51m

$1,270

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Mon 6/1

12:40 pm-6:05 am

2 stops37h 25m

Asuncion Silvio Pettirossi

Mon 6/29

8:10 am-12:33 pm

3 stops56h 23m

$1,273

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 6/12

10:20 pm-4:40 am

2 stops26h 20m

Asuncion Silvio Pettirossi

Fri 6/19

8:10 am-10:05 am

2 stops29h 55m

$1,277

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Tue 6/23

10:20 pm-6:05 am

2 stops27h 45m

Asuncion Silvio Pettirossi

Mon 6/29

8:10 am-7:03 pm

2 stops38h 53m

$1,314

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Wed 8/12

11:56 pm-5:25 am

2 stops25h 29m

Asuncion Silvio Pettirossi

Sat 8/22

6:33 am-2:22 pm

3 stops35h 49m

$1,390

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Fri 8/14

5:00 pm-5:25 am

2 stops32h 25m

Asuncion Silvio Pettirossi

Wed 8/19

6:33 am-12:40 pm

2 stops34h 07m

$1,472

SeattleAsuncion

SEA - ASU

SEAASU

Seattle/Tacoma Intl

Sat 8/15

11:56 pm-5:25 am

2 stops25h 29m

Asuncion Silvio Pettirossi

Sun 8/23

6:33 am-2:22 pm

3 stops35h 49m

$1,482

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Asuncion

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Asuncion in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Asuncion flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Asuncion flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Asuncion flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Asuncion

How much does it cost to fly round-trip from Seattle to Asuncion?

Reviews of airlines servicing Asuncion

Get insights into the airlines that provide service to Asuncion. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Asuncion. Reviews last updated April 29, 2026.
Peruse reviews from past customers who have flown with LATAM Airlines from Seattle to Asuncion to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

6.7

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Overall

7.4

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Food

6.7

Comfort

7.3

Boarding

7.5

Entertainment

7.0

Crew

8.0

Overall

7.4

Reviews

1 / 20
8.0
Excellent

LUIS JOSE,Oct 2025

LIM - AEP

Smiles because se upgraded to premiums economy. That was similar to LAN economy years ahí!

Related info for your journey

Find useful and relevant information for your journey from Seattle to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Seattle to Asuncion?

    A quick flight from Seattle to Asuncion can take about 21h 55m. Copa Airlines provides one of the quickest options available for as low as $1,223. The distance from Seattle to Asuncion is about 6426 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Asuncion round-trip?

    LATAM Airlines, at $729, was found to be the cheapest airline from Seattle to Asuncion.. LATAM Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Asuncion that include hotel bookings?

    Yes. In addition to deals on Seattle to Asuncion flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Asuncion?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Asuncion.

  • Can I find deals for business class flights from Seattle to Asuncion?

    Yes. Cheapflights offers flight deals from Seattle to Asuncion by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Seattle to Asuncion

Discover the top airline that operate flights from Seattle to Asuncion. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$729Average$1,015FlexibilityNo cancel feeOn-time81%

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